The working principle of the intelligent charging pile first involves the basic structure of the high-power pure electric vehicle charger. In this structure, the three-phase power supply inputs alternating current and converts it into direct current through the three-phase bridge uncontrollable rectifier circuit. After the filtering process, the direct current is supplied to the high-frequency DC-DC power converter. The high frequency DC-DC power converter performs a direct conversion of direct current and outputs the required DC voltage.
Charging pile Charging principle The charging pile is fixed on the ground and is used exclusivelyThe charging interface is used to provide AC electric energy for the electric vehicle with the on-board charger, and has the corresponding communication, billing and safety protection functions. Citizens only need to buy an IC card and recharge it, and they can use the charging pile to charge their cars.
The control circuit of the electric vehicle charging pile is mainly realized through the embedded ARM processor. Users can complete user authentication, balance query, billing query and other functions by swiping the card, and provide voice output interface to realize voice interaction. Users can choose four charging modes according to the instructions of the LCD screen: charging by time, charging by power, automatic charging,Charge by mileage.
1, short-range wireless communication technology: Bluetooth technology, Wi-Fi technology, NFC technology, wireless charging technology, Zigbee technology. Bluetooth is a short-range wireless communication technology widely used in consumer electronics. It provides low power consumption, easy to use features, and enables fast data transfer and connection between devices such as mobile phones, headphones, and stereos.
2, short-range wireless communication mainly includes the followingBluetooth is a technology widely used in short-range wireless communication. It can create a temporary micronetwork between devices, enabling them to communicate with each other and exchange data. Bluetooth technology is widely used in mobile phones, computers, headphones, cars and other devices to achieve seamless connection of information.
3, short-range wireless communication technology is mainly the following: Bluetooth technology, wireless LAN Wi-Fi, NFC technology, ZigBee technology and radio frequency identification RFID technology. Bluetooth technology is widely used in short-range wireless communicationTechnology. Due to its low power consumption and low cost characteristics, it is widely used in mobile phones, tablets, headphones and other devices. Bluetooth technology can realize data transmission and communication between devices in a short distance.
4, Bluetooth technology (Bluetooth) Bluetooth technology is an open standard technology widely used in short-range wireless communication. It connects devices through a wireless connection to achieve data transmission and synchronization. Mainly used in mobile phones, computers, headphones and other electronic products. This technology has low power consumption and high reliability, and is suitable for short distance data exchange and synchronization requirements. Wireless local area Network (WThe exhibition shows that with the introduction of the Qi2 standard, wireless charging technology will be significantly improved in terms of security, stability, compatibility and so on. The implementation of the Qi2 standard will provide users with a more convenient and efficient charging experience, promote the wide application of wireless charging technology in many fields, and lay the foundation for the realization of a more intelligent and green charging method.
2, Apple iPhone 13/14/15 series and the upcoming iPhone16 series have obtained the official Qi2 wireless charging certification of WPC, indicating that the wireless charging accessories market will usher in a new boom in the second half of the year. WPC QiThe introduction of the 2 protocol has improved the wireless charging experience, and many new products from well-known manufacturers have been certified, and more Qi2 products will flood the market in the future.
3, Apple launched the iPhone12 series in 2020, equipped with MagSafe magnetic wireless charging technology, and then Apple joined WPC wireless charging alliance. The consortium developed the universal Qi2 wireless charging protocol based on Apple's magnetic technology, making all devices on the market that support the Qi protocol compatible.
4, the rise of wireless fast charging technology makes charging mobile phones and digital devices more convenient. Among them, Qi AssociationAs a standard led by the WPC (Wireless Charging Alliance), it has attracted much attention because of its technological sense and the improvement of user experience. Let's take a closer look at the latest developments in Qi and especially Qi2. WPC was founded in 2008 to promote the standardization of wireless charging and currently has 328 members worldwide.
5, Qi2 Wireless charging protocol is the latest wireless charging standard launched by WPC, which brings faster wireless charging speed, versatility and compatibility to handheld and mobile devices. Qi2 charging devices can be aligned and carried out much faster using magnets, just like existing MagSafe accessoriesCharge up. Compared to the previous Qi standard, Qi2 uses magnetic power profile technology, which claims to ensure the perfect match between the device and the charger, thus improving energy efficiency.